Storage container with tortuous path seal
AssigneeInstant Systems, Inc.
InventorsUzair Ahmed RAJPUT, Emilio Alejandro EDWARDS
Life of this patent
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Abstract
A flexible container includes a primary closure including a fold region having an adhesive material located along the opening. The fold region is configured to fold over the opening such that the adhesive material contacts a first layer or a second layer of the container to seal the opening. The container also includes a secondary closure including a tab extending past at least one of the first edge or the second edge and spaced apart from the fold region. The tab is configured to secure the fold region after the fold region is folded over the opening.
Claims21
A flexible container, comprising:
- a first layer and a second layer, at least one of the first layer or the second layer constructed from a first material, the first layer and second layer coupled together to form the flexible container having a first end portion, a second end portion, a first edge between the first end portion and the second end portion, and a second edge between the first end portion and the second end portion, the first edge opposite the second edge, the first layer and the second layer coupled together along the first edge, the second edge, and the second end portion to define a storage volume between the first layer and the second layer with an opening into the storage volume defined at the first end portion;
- a primary closure including a fold region having a second material located along the opening, the fold region configured to fold over the opening such that the second material contacts the first material of one of the first layer or the second layer to seal the opening;
- and
- a secondary closure including a tab extending past at least one of the first edge or the second edge and spaced apart from the fold region, the tab configured to secure the fold region after the fold region is folded over the opening.
A method of enclosing a material in a flexible container having a first end portion and a second end portion, the flexible container constructed from a first layer and a second layer coupled together to define a storage volume between the first layer and the second layer with an opening into the storage volume defined at the first end portion, the flexible container having a primary closure and a secondary closure;
- separating the first layer and the second layer to expand the opening;
- inserting the material into the storage volume via the expanded opening;
- compressing the flexible container to expel air from the storage volume by applying a pressure against an outer surface of the flexible container progressively from the second end portion towards the opening;
- removing a first adhesive liner from a fold region of the primary closure to expose a first adhesive;
- folding the fold region along a perforation line to cover the opening;
- sealing the fold region to the second layer via the first adhesive;
- folding, after the sealing, the fold region along a length of the flexible container until the fold region overlaps the secondary closure;
- removing a second adhesive liner from the secondary closure to expose a second adhesive;
- and
- adhering the fold region to the secondary closure via the second adhesive.
A flexible container system, comprising:
- a first layer and a second layer, at least one of the first layer or the second layer constructed from a first material, the first layer and second layer coupled together to form the flexible container having a first end portion, a second end portion, a first edge between the first end portion and the second end portion, and a second edge between the first end portion and the second end portion, the first edge opposite the second edge, the first layer and the second layer coupled together along the first edge, the second edge, and the second end portion to define a storage volume between the first layer and the second layer with an opening into the storage volume defined at the first end portion, the first layer extending past the second layer at the opening;
- a primary closure including a fold region, the fold region located along the opening and defined by a portion of the first layer and extending past the second layer, the fold region configured to form a first fold over the opening to seal the opening;
- and
- a secondary closure spaced apart from the fold region, the secondary closure configured to form a secondary seal between the fold region and the second layer when the fold region is folded across the secondary closure.
20-21. (canceled)
Dependencies are inferred from the claim text.